Pin.



GEORGE W. DOVER, OF ORANSTON, RHODE ISLAND.

PIN.

Specification of Letters Patent.

Patented Aug. 18, 1908.

Application filed March 19, 1908. Serial No. 422,074.

To all whom it may concern:

Be it known that I, GEORGE W. DOVER, a citizen of the United States, residing at Cranston, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Pins, of which the following is a specification.

My invention relates to pins for personal adornment, but more especially to what are commonly known as cuff pins.

The essential objects of the invention are strength, cheapness, smoothness, and regularity of contour; adaptability of the back to polishing operations, and to the use of rolled plate without exposure of a base metal edge.

Other advantages and objects will be hereinafter set forth and claimed.

Invention resides in the novel construction and combination of the parts constituting the pin body.

In the drawings which constitute a part of this specification, Figure 1 is a side elevation of a complete pin embodying my invention. Fig. 2, a central longitudinal section of the same. Figs. 3 and 4, a plan and a central longitudinal section respectively of the back plate before piercing. Fig. 5, a plan of the same after piercing. Fig. 6, a plan of the blank for the intermediate or base plate, and Figs. 7 and 8, sections on lines and y y respectively of Fig. 2.

Like reference characters indicate like parts throughout the views.

My novel pin is constructed as follows: An oblong elliptical back plate, A, is cut and struck up from sheet metal, preferably plated; comprising a body portion, a, and a vertical, somewhat rounded, marginal flange, a', all as shown in Figs. 3 and 4. It will be understood that when plated the precious metal is upon the outer face of the plate and flange. The plate body, a, is next pierced at three points, producing three oblong rectangular longitudinal openings. TWO of these, a2, a2, being located side by side near one endof the plate; and the third, a3, being located near the other end of the plate. Next is formed an intermediate or base plate, B, cut from a sheet of metal with two oppositely disposed lateral ears, b, t, cut therein near one end, each provided with a perforation, b. The blank has also near its opposite end a lateral projection, b2. The ears, b, and projection, b2, are next bent up at right angles to the body, B, of the blank. The latter is then inserted within the flanged 'back plate, A, the ears, l), passing through the slots, a2, and the projection, b2, passing through the opening 0.3. The projection, b2, then has its end bent to form a catch for the pin tongue. It is not essential that in detail the plate, B, and its parts be constructed as described.

The front plate is preferably of the shape of an elongated or substantially elliptical cup, C, provided with a horizontal peripheral flange, c. The flange rests upon the plate,

B, and is overlapped by the inturned flange,

d, of the back plate. Thus the plate, B, is forced and held tightly against the body, a, of the back plate.

Any desired form of pin tongue and head may now be mounted in the described novel body. The form of tongue herein shown comprises the pin shaft, D, provided with a folded head, E, perforated as at e, to receive the pintle, F, which also traverses the ears, l), through the perforations, b

The described form of tongue and head 'constitute a part of the subject matter of my pending patent application filed March 19, 1908, Serial No. 422,073.

It will be observed in the construction of this pin the use of solder is not essential, and the weakening effects upon the structure of the annealing involved in soldering is avoided, as well as discoloration. Furthermore, the exposed face of the back plate is unribbed, and free of all irregularities or abrasive agents, and presents a surface capable of polishing. This peculiar assemblage of the parts is obviously inexpensive and strong.

What I claim is,

1. In' a pin, the combination with a front plate, of a back plate provided with perforations and fixed to the front plate, a base plate between the front plate and back plate, and ears upon the base plate passing through the perforations.

2. In a pin the combination with a fr'ont plate, of a back plate provided with a perforation and fixed to the front plate, a base plate between the front plate and back plate, and a catch member u on the base plate passing through the per oration.

3. In a pin the combination with a front plate, of a back late provided with three' 4. In a in the combination with a front plate, of a ack late provided with perforations, a margina flan e upon the back plate engaging the front p ate, a base late between the front plate and back p ate, and ears upon the base vplate passing through the perforations.

5. In a pin the combination with a front plate, of a back plate provided with a perfo'- ration, Va marginal flange upon the back plate engaging the front plate, a base plate between the front plate and back late, and a catch member upon the base p ate passing through the perforation. v

6. In a in the combination with a front plate,`of a ack late provided with perforations, a marginalilange upon the back plate engaging the front plate, a base plate between the front plate and back plate, andk 7. In a pln the combination with a eupshaped front plate rovided with a marginal flanged ortion, o? a baek'plate provided with per orations and with a marginal flange engaging the`flanged portion of the front plate; a base plate intermediate the front plate and back plate, and ears and a Catch upon the base plate passing through the perforations.4

In testimony whereof I have affixed my'v 

